Article History
Received: 2 November 2019
Accepted: 14 July 2020
First Online: 20 July 2020
Ethics approval and consent to participate
: This study was approved by the ethical committee at Yokosuka Chuoh Eye Clinic and Tsurumi Chuoh Eye clinic. The data used in this study was anonymized before its use.
: Not Applicable.
: The authors declare that they have no competing interests.